#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main() {
    int n;
    while (scanf("%d", &n) != -1) {
        for (int i = 1; i < n + 1; i++) {
            for (int j = 1; j < n + 1; j++) {
                if (j == i || j == n + 1 - i) {
                    printf("*");
                }
                else {
                    printf(" ");
                }
            }
            printf("\n");
        }
    }
    return 0;
}